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39 lines
1.5 KiB
39 lines
1.5 KiB
4 years ago
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package downloader
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import (
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"context"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/event"
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"github.com/harmony-one/harmony/consensus/engine"
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"github.com/harmony-one/harmony/core/types"
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"github.com/harmony-one/harmony/p2p/stream/common/streammanager"
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syncproto "github.com/harmony-one/harmony/p2p/stream/protocols/sync"
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sttypes "github.com/harmony-one/harmony/p2p/stream/types"
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)
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type syncProtocol interface {
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GetCurrentBlockNumber(ctx context.Context, opts ...syncproto.Option) (uint64, sttypes.StreamID, error)
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GetBlocksByNumber(ctx context.Context, bns []uint64, opts ...syncproto.Option) ([]*types.Block, sttypes.StreamID, error)
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GetBlockHashes(ctx context.Context, bns []uint64, opts ...syncproto.Option) ([]common.Hash, sttypes.StreamID, error)
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GetBlocksByHashes(ctx context.Context, hs []common.Hash, opts ...syncproto.Option) ([]*types.Block, sttypes.StreamID, error)
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RemoveStream(stID sttypes.StreamID) // If a stream delivers invalid data, remove the stream
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SubscribeAddStreamEvent(ch chan<- streammanager.EvtStreamAdded) event.Subscription
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NumStreams() int
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}
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type blockChain interface {
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engine.ChainReader
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Engine() engine.Engine
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InsertChain(chain types.Blocks, verifyHeaders bool) (int, error)
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WriteCommitSig(blockNum uint64, lastCommits []byte) error
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}
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// insertHelper is the interface help to verify and insert a block.
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type insertHelper interface {
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verifyAndInsertBlocks(blocks types.Blocks) (int, error)
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verifyAndInsertBlock(block *types.Block) error
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}
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